On Mon, Oct 20, 2003 at 10:16:49AM -0400, Jesse Huestis wrote:
RAID 0 is not by its nature a performance booster. It is a great way
to add redundancy. A better performance advantage is acheived using
RAID 5. It has the reliability of striping your information accross
several drives with one drive able to fail before losing the array and
the performance increase of multiple drives read and write abilities.
Uhh.... What? Are you sure you're not thinking of raid 1 (mirroring)?
Raid 0 is striping, no mirroring, no redundancy. It exists for no other
reason than performance.
Raid 5 is striping with a parity volume distributed across the array. Raid 5
is certainly much slower than raid 0 on writes and it wastes a space on parity
data. I want to take 2 drives, turn them into one big filesystem and
read/write data quickly. If I was completely paranoid about non-replacable
mp3/avi/video game high scores... I'd be into raid5.
Definitions:
http://www.winnetmag.com/Articles/Index.cfm?ArticleID=218
3ware benchmarks:
http://www.3ware.com/products/benchmarks.asp
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